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L L March 22, 2005 NOA Project Number: E04132A Measurement of the water level during the percolation test was from a fixed reference point on the L PVC casing using an electric well sounder with an depth accuracy of 1/100th foot. All tabulated values on the field data sheet (appendix) are in decimal feet. After water drop was observed,the V holes were checked for refill. The refill level was approximately 0.5 ft (6 inches) of water above the bottom level of the percolation test hole. The readings were taken approximately every 30 minutes for a period of four hours. LMeasurement of the water level during the percolation test was from a fixed reference point on the PVC casing using an electric well sounder with an depth accuracy of 1/100th foot. All tabulated values on the field data sheet (appendix) are in decimal feet. After water drop was observed,the 1 holes were checked for refill. The refill level was approximately 0.5 ft(6 inches) of water above the bottom level of the percolation test hole. The readings were taken approximately every 10 minutes 4 for a period of one hour. ` 6.6 Percolation Test Forms and Results The completed percolation test forms are included in the appendix of this report. A shallow percolation test is defined by the EHD as being between 36 and 42 inches in depth;a Lsatisfactory percolation rate for a shallow test is less than or equal to 60 minutes per inch drop. A deep percolation test is defined as being between 3.5 and 25 feet in depth; a satisfactory percolation rate for a deep test is 30 min/in or less. One percolation test must demonstrate a satisfactory Lpercolation rate within the proposed septic system disposal field of each parcel. Details of the percolation tests are summarized in Table 9. Table 9. Summary of Percolation Tests. Test No., Percolation Percolation Rate Test Comment Date Tested Test Depth(ft) (minutes/inch) Duration (see notes) P-11 shallow,3/21/05 3,50 25.0 4-hr Satisfactory percolation rate (APN 181-090-11) P-11 deep,3/21/05 21.5 27.8 4-hr Satisfactory percolation rate (APN 181-090-11) P-2 shallow,3/21/05 3.43 27.8 4-hr Satisfactory percolation rate (APN 181-090-02) P-2 deep,3/21/05 23.5 35.7 . 4-hr. Unsatisfactory Percolation rate, r APN 181-090-02) fail Note: A satisfactory percolation rate for a"shallow'-rest-is less than or equal to 60 minutes per inch. A satisfactory percolation rate for a"deep"test is less than or equal to 30 minutes per inch. L 10 IL v